The Level Requested To Pass B4

• Control the position of the head in the top: keep balance + at ease
  (without spending time of maintenance).

• Control of a rotation (no matter which axis), and  return
  to the initial position and respect the axes.
• Variation of the rate of fall.
• Privileges:
  • The holder of the B4 patent can jump in 2 persons in free fly
    (At the first time).
  • For the jumps in more than 2 persons: with patent B4 and it depends on the level of the participants and the type of jumps.

• To take appointment to pass the patent B4.
• Financial conditions:
• 55 euros + 9 euros in case of hiring of the equipment
• Obligatory carryings:
• A system of safety.
• A sound altimeter.
• A helmet.
• And of course, the equipments should be in a good condition.

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